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Taiwan Semiconductor Corporation TUAS3JH
- Part No.:
- TUAS3JH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TUAS3JH.pdf
- Description:
- 3A, 600V, STANDARD RECOVERY RECT
- Quantity:
- Payment:
- Shipping:
Inventory:5,945
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Product details
Overview
TUAS3JH from Taiwan Semiconductor is a 3A, 600V AEC-Q101-qualified standard surface-mount rectifier in TO-277A (SMPC4.6U) package, featuring glass passivated junction, 100A surge capability, wettable flanks, and J-STD-020 Level 1 moisture sensitivity - used in automotive DC-DC converters and snubber circuits.
For engineers reviewing the TUAS3JH datasheet, TUAS3JH pinout, TUAS3JH application, or TUAS3JH equivalent, key selection criteria include repetitive peak reverse voltage (600 V), forward voltage at 3.0 A (0.94 V typ, 1.10 V max @ 25°C), junction-to-lead thermal resistance (5.4 °C/W), junction capacitance (27 pF @ 1 MHz), and AEC-Q101 qualification for automotive reliability.
Technical Context
This single-die standard rectifier operates with a maximum junction temperature of 150°C and supports continuous forward current up to 3 A. Its glass passivated chip junction ensures stable reverse leakage (<5 µA @ 25°C, <11 µA @ 125°C) and high surge robustness (100 A IFSM, 8.3 ms half-sine).
The TO-277A (SMPC4.6U) package delivers low thermal resistance (RθJL = 5.4 °C/W) on PCB-mounted 16 mm × 16 mm copper pads and enables automated placement with matte tin-plated, whisker-tested leads and cathode-band polarity marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse blocking voltage; defines safe operating range in DC-DC flyback or snubber networks |
| IF | 3 A - Continuous average forward current rating at TA = 25°C; determines steady-state power handling capacity |
| IFSM | 100 A - Non-repetitive surge current (8.3 ms); supports transient overload protection in automotive load dumps |
| VF @ 3.0 A, 25°C | 0.94 V (typ), 1.10 V (max) - Forward conduction loss directly impacts efficiency and thermal rise in high-duty-cycle rectification |
| RθJL | 5.4 °C/W - Junction-to-lead thermal resistance; enables accurate thermal modeling when mounted on defined PCB copper area |
| CJ @ 1 MHz | 27 pF - Junction capacitance affects high-frequency switching noise and EMI in snubber and converter applications |
Pinout & Package
TO-277A (SMPC4.6U) surface-mount package with 2 terminals: anode and cathode. Cathode identified by molded band. Matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 2 whisker requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connects to AC or switched node side; must withstand full reverse voltage during off-state |
| Cathode | Output current exit point | Marked by visible band; connects to output rail or energy storage element; carries full forward current |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and UHAST - required for under-hood and lighting modules |
| Glass passivated junction | Provides stable reverse leakage and long-term die surface integrity against humidity and contamination |
| Wettable flank design | Enables automated optical inspection (AOI) of solder joints on bottom-side terminations for IPC-A-610 compliance |
| J-STD-020 Level 1 MSL | Zero floor life limitation - no baking required before reflow, simplifying SMT line logistics and reducing process risk |
Applications
| Automotive DC-DC Converters | LED Headlamp Drivers |
|---|---|
Use Scenario: High-efficiency buck-boost conversion in 12 V/48 V dual-battery automotive systems. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant topologies, handling 3 A continuous output current. Use Value: Low VF (0.94 V typ) reduces conduction loss; AEC-Q101 qualification ensures operation across -40°C to +150°C ambient. | Use Scenario: Constant-current LED driver for adaptive front lighting systems (AFS) with PWM dimming. IC Role / Device Role / Timing Role: Freewheeling diode in inductive switch-mode regulator, clamping inductive kickback during MOSFET turn-off. Use Value: 100 A IFSM withstands high-energy transients; wettable flanks support AOI verification of solder joint integrity. |
| Snubber Networks | Industrial Power Supplies |
Use Scenario: RC snubber across relay contacts or IGBTs in motor control inverters. IC Role / Device Role / Timing Role: Fast-recovery rectifier absorbing inductive energy spikes during switching transitions. Use Value: 600 V VRRM safely blocks transient overvoltages; 27 pF CJ minimizes capacitive loading on snubber timing. | Use Scenario: Secondary-side rectification in isolated AC-DC power supplies for factory automation controllers. IC Role / Device Role / Timing Role: Standard rectifier delivering regulated 5 V/3.3 V rails with >85% efficiency at full load. Use Value: RθJL = 5.4 °C/W enables thermal management without heatsinks on standard FR4 PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S | 600 V VRRM, 3 A IF, TO-277A, VF = 0.95 V @ 3 A, but not AEC-Q101 qualified | Targeted at industrial/commercial power supplies; lacks automotive stress validation | Select when AEC-Q101 is not required and STMicroelectronics supply chain preference applies |
| MBR360FCT | 60 V VRRM (not 600 V), Schottky architecture, VF ≈ 0.52 V @ 3 A, higher IR leakage | Only suitable for low-voltage, high-efficiency apps; cannot replace TUAS3JH in 600 V blocking roles | Use only in ≤60 V systems where ultra-low VF outweighs reverse voltage need |
Compared with STTH3L06S, TUAS3JH adds AEC-Q101 qualification critical for automotive deployment; compared with MBR360FCT, TUAS3JH provides six times higher reverse voltage rating essential for snubber and DC-DC isolation barriers - neither is pin-compatible, but both serve adjacent voltage/current niches.
Availability
TUAS3JH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converters, and snubber networks requiring stable component supply, traceable sourcing, and long-lifecycle availability.
Supply support for TUAS3JH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The TUAS3JH belongs to TSC's AEC-Q101-qualified surface-mount rectifier family designed specifically for automotive power conversion and ruggedized industrial rectification where reliability under thermal and mechanical stress is mandatory.
FAQ
What is the peak repetitive reverse voltage rating for TUAS3JH?
The TUAS3JH has a peak repetitive reverse voltage (VRRM) rating of 600 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2111). It defines the maximum reverse voltage the device can block repeatedly without breakdown, making TUAS3JH suitable for 600 V-class DC-DC converters and snubber circuits where transient overvoltage immunity is required.
Is TUAS3JH qualified for automotive applications?
Yes, TUAS3JH is AEC-Q101 qualified per the manufacturer's documentation. This qualification includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and unbiased highly accelerated stress test (UHAST), confirming suitability for under-hood and lighting applications. The TUAS3JH datasheet explicitly states AEC-Q101 compliance in its FEATURES section, distinguishing it from non-automotive rectifiers in the same TO-277A family.
What is the forward voltage drop of TUAS3JH at 3 A and 25°C?
The TUAS3JH exhibits a typical forward voltage (VF) of 0.94 V and a maximum of 1.10 V at 3.0 A and TJ = 25°C, as specified in the Electrical Specifications table. This VF value directly impacts conduction losses and thermal performance in high-current rectification paths. Measurements are based on pulse testing (PW = 0.3 ms) to minimize self-heating during characterization.
Does TUAS3JH have wettable flanks, and why does it matter?
Yes, TUAS3JH features wettable flanks on its TO-277A (SMPC4.6U) package terminals. This design allows solder to wick up the vertical sidewall during reflow, enabling automated optical inspection (AOI) of solder fillets. For TUAS3JH, this supports IPC-A-610 Class 2/3 compliance in automotive manufacturing, improving process yield and field reliability without requiring X-ray inspection.
What is the junction-to-lead thermal resistance (RθJL) of TUAS3JH?
The junction-to-lead thermal resistance (RθJL) of TUAS3JH is 5.4 °C/W, measured under standardized conditions using a 16 mm × 16 mm copper pad PCB. This parameter enables accurate thermal modeling of the TUAS3JH in real-world layouts, supporting junction temperature prediction and derating decisions - especially critical in automotive environments where ambient temperatures exceed 105°C.
TUAS3JH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-277, 3-PowerDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 27pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC4.6U)
- Operating Temperature - Junction:
- -55°C ~ 150°C
TUAS3JH FAQ
1.How can I place an order for TUAS3JH through Aetrix?
Please submit a Request for Quotation (RFQ) for TUAS3JH on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TUAS3JH reliable?
The price and inventory of TUAS3JH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUAS3JH is usually 5 days.
3.What payment methods are accepted for TUAS3JH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUAS3JH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUAS3JH?
TUAS3JH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUAS3JH order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TUAS3JH?
For technical support, including TUAS3JH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUAS3JH requirements.
6.How does Aetrix verify that TUAS3JH is sourced from the original manufacturer or authorized distributors?
All TUAS3JH products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TUAS3JH meets industry standards.
7.What is the process for return or replacement of TUAS3JH?
All TUAS3JH units undergo pre-shipment inspection (PSI). If there is an issue with TUAS3JH, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TUAS3JH part is unused and in its original packaging.
Return procedure for TUAS3JH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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